RTS Iso Tooling Gelcoat Grey (20.8kg)
BÜFA®-ISO Gelcoat 3000-I-1 is a fast cure pre-accelerated, thixotropic
isophthalic gelcoat ready for use. This gelcoat is a non pigmented brush
gelcoat suitable for use in general moulding applications. BÜFA®-ISO
Gelcoat 3000-I-1 is intended to be tinted in the desired colour tone by
addition of colour pastes.
BÜFA®-ISO Gelcoat 3000-I-1 is suitable for moulded parts that are
subjected to heavy weathering or normal hydrolysis loads (e.g. in boat
construction, vehicle parts, shower trays etc).
Specifications /technical data
Property Test method Value Unit
Viscosity at 25 °C
spl 6. rpm 5.
ISO 2555 31390 – 42500 mPas
Viscosity at 25 °C
spl 6. rpm 50.
ISO 2555 7300 – 8500 mPas
Styrene content 31 – 35 %
Flash point DIN 53 213 34 °C
BÜFA method in accordance with DIN 16 945 18.104.22.168
(100 g gelcoat + 1.0 g Butanox M-50)
25 – 35 °C 13 – 17 min
25 °C – Tmax 21,3 – 23,3 min
Tmax 162 – 198 °C
The information given above refers exclusively to the use of the catalyst
named and the quantity specified. The use of different products or
differing quantities may yield different results. Density depends on
BÜFA®-ISO Gelcoat 3000-I-1 can be supplied in most RAL colours and a
number of other shades. It is also available as an unpigmented base
gelcoat with higher viscosity and reactivity under Product No. 655-2000.
Pigmented gelcoats are produced via the Eurotinter system, with fast
colour matching service available.
Properties of the cured base resin
Property* Test method Value
Tensile strength ISO 527-2 85,5 MPa
Tensile E-modulus ISO 527-2 3400 MPa
Tensile elongation ISO 527-2 4,0 %
temperature (HDT) ISO 75-A approx. + 92 °C
* Measured in a standard laboratory atmosphere on cast test specimens made of pure
resin that were conditioned for 24 hours at + 80 °C.
Directions for use
Our release agent system BF 500 /BF 700 has been tested and
successfully used with this gelcoat. Before using other release agents,
they should be tested for suitability under practical conditions. If
circumstances permit, we recommend post-curing the moulded part for
several hours at 80 °C so that optimal gelcoat properties are achieved.
For more information on working and curing, see the notes in our
Technical Information leaflet, “Working with BÜFA® -Gelcoats”.
BÜFA®-ISO Gelcoat 3000-I-1 is available in 20 kg and 200 kg
packaging.This product must be stored cool in closed containers,
protected from sunlight. Shelf-life is at least 4 months in unopened,
original containers stored up to a temperature of 20 °C. Gel and curing
times may change with increasing duration of storage.